1. Anaerobic bacteria as cause of infections in female genital organs;Bergan;Scand J Gastroenterol,1983
2. An unusual tubo-ovarian abscess. (Report of a case with gas formation.);Bowie;W V Med J,1968
3. Tubo-ovarian abscess presenting as pneumoperitoneum;Chang;J Assist Reprod Genet,2002
4. Gas in the wound: what does it mean?;Nichols;Surg Clin North Am,1975
5. Tubo-ovarian abscess caused by multidrug resistant Bacteroides gracilis;Yu;J Formos Med Assoc,1997